sync from Azure to LF

[ric-plt/e2mgr.git] / E2Manager / converters / x2_reset_response_extractor.go

diff --git a/E2Manager/converters/x2_reset_response_extractor.go b/E2Manager/converters/x2_reset_response_extractor.go
new file mode 100644 (file)
index 0000000..32752d2
--- /dev/null
+++ b/E2Manager/converters/x2_reset_response_extractor.go
@@ -0,0 +1,87 @@
+//
+// Copyright 2019 AT&T Intellectual Property
+// Copyright 2019 Nokia
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package converters
+
+// #cgo CFLAGS: -I../asn1codec/inc/ -I../asn1codec/e2ap_engine/
+// #cgo LDFLAGS: -L ../asn1codec/lib/ -L../asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
+// #include <asn1codec_utils.h>
+// #include <SuccessfulOutcome.h>
+import "C"
+import (
+       "e2mgr/e2pdus"
+       "e2mgr/logger"
+       "fmt"
+       "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
+       "unsafe"
+)
+
+type X2ResetResponseExtractor struct {
+       logger *logger.Logger
+}
+
+func NewX2ResetResponseExtractor(logger *logger.Logger) *X2ResetResponseExtractor {
+       return &X2ResetResponseExtractor{
+               logger: logger,
+       }
+}
+
+type IX2ResetResponseExtractor interface {
+       ExtractCriticalityDiagnosticsFromPdu(packedBuffer []byte) (*entities.CriticalityDiagnostics, error)
+}
+
+func (e *X2ResetResponseExtractor) ExtractCriticalityDiagnosticsFromPdu(packedBuffer []byte) (*entities.CriticalityDiagnostics, error) {
+       pdu, err := UnpackX2apPdu(e.logger, e2pdus.MaxAsn1CodecAllocationBufferSize, len(packedBuffer), packedBuffer, e2pdus.MaxAsn1CodecMessageBufferSize)
+
+       if err != nil {
+               return nil, err
+       }
+
+       if pdu.present != C.E2AP_PDU_PR_successfulOutcome {
+               return nil, fmt.Errorf("Invalid E2AP_PDU value")
+       }
+
+       successfulOutcome := *(**C.SuccessfulOutcome_t)(unsafe.Pointer(&pdu.choice[0]))
+
+       if successfulOutcome == nil || successfulOutcome.value.present != C.SuccessfulOutcome__value_PR_ResetResponse {
+               return nil, fmt.Errorf("Unexpected SuccessfulOutcome value")
+       }
+
+       resetResponse := (*C.ResetResponse_t)(unsafe.Pointer(&successfulOutcome.value.choice[0]))
+
+       protocolIEsListCount := resetResponse.protocolIEs.list.count
+
+       if protocolIEsListCount == 0 {
+               return nil, nil
+       }
+
+       if protocolIEsListCount != 1 {
+               return nil, fmt.Errorf("Invalid protocolIEs list count")
+       }
+
+       resetResponseIEs := (*[1 << 30]*C.ResetResponse_IEs_t)(unsafe.Pointer(resetResponse.protocolIEs.list.array))[:int(protocolIEsListCount):int(protocolIEsListCount)]
+
+       resetResponseIE := resetResponseIEs[0]
+
+       if resetResponseIE.value.present != C.ResetResponse_IEs__value_PR_CriticalityDiagnostics {
+               return nil, fmt.Errorf("Invalid protocolIEs value")
+       }
+
+       cd := (*C.CriticalityDiagnostics_t)(unsafe.Pointer(&resetResponseIE.value.choice[0]))
+
+       return getCriticalityDiagnostics(cd)
+}